RadiFit EC centrifugal fans.
Compact, efficient, easily upgraded.

Fits, saves and makes sense!

Our RadiFit range of centrifugal fans with scroll housing and back­ward-­curved blades is the new system solution for many applicationsin industry and ventilation technology. Thanks to the highly efficientGreenTech EC motors, it offers high efficiency at high ­pressures.

They are also extremely compact, robust and light. Best of all, RadiFit
fans match the standard installation dimensions for fans. This makes
installing and replacing them child’s play.

Typical applications in air conditioning
Example: Low profile air conditioning unit
with RadiFit ø 250 mm
In air-conditioned buildings, the warm air is used to adjust the­temperature of the incoming air. In this process, fans convey the air
through the heat exchanger and then through the intake and exhaust
air ducts. Due to strict energy conservation regulations, the fansmust not only be compact and flexibly controllable, but also highlyefficient. Just like our new RadiFit.
Example: Central air handling unit with RadiFit ø 400 mm
Central air handling units use a variety of components such as filters,
heat exchangers, humidifiers and de-humidifiers. The fans have toconvey the air through all these components as well as through abranched system of ducts, whilst compensating for the high losses ofpressure. At the same time, the system needs to use less space andallow many rooms to be ventilated according to demand. The solution
comes in the form of our new EC centrifugal fans, which are flexible,
robust and easy to install.

Typical industrial implementation
Example: Generator cooling with RadiFit ø 310 mm
A fan pushes the ambient air through narrow ducts on the generator
in order to cool it. In this application, too, our centrifugal fans show
off all their strengths. The integrated speed control allows the coolingto be adjusted to the load or heat generation of the generator at anytime. The fan requires very little installation space, however, as
it needs no separate control unit. It also requires no maintenance.

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Retrofit: replace with highly efficient technology.

Energy efficiency means lower operating costs. Our centrifugal fansComparing this to an obsolete belt drive and a flange-mounted motorwith GreenTech EC technology are so much more advanced thanmakes the difference clear to see. Instead of connecting multiple

normal fans, that even retrofitting existing units quickly pays for­components to each other at great effort and expense, RadiFit has­itself. Furthermore, our new range has a particularly long service life

everything integrated already, combined with minimal size andand requires no maintenance at all, which results in further cuts

­maximum energy efficiency.

to operating and life cycle costs. Finally, we deliver the fans completewith housing and installed controlled electronics (VSD). This also
­reduces your installation costs to a minimum.

Centrifugal fans with belt drive

RadiFit GreenTech EC centrifugal fanand external control electronics need a lot of space and have

In comparison, the RadiFit GreenTech EC centrifugal fan showshigh maintenance costs related to wear-and-tear parts. Often,­impressive efficiency and compactness. Thanks to the simple

cheap and ­inefficient forward curved blowers are used here.

Plug & Play exchange system, running costs and maintenancework can be greatly reduced.

Control
VSD
HVAC

VSD
HVAC

GreenTech
Mains supply

EC fanCentrifugal fans with standard AC motor

RadiFit GreenTech EC centrifugal fan

are complex systems which require a lot of space for drive

The RadiFit impresses with its compactness and the efficient controland control.

technology of the GreenTech EC motor. With the innovative
Plug & Play solution, operators can easily modernise their systemand save costs over the long term.

Control
VSD
HVAC

VSD
HVAC

GreenTech
Mains supply

EC fanFans are often assembled from various different components,

With the GreenTech EC solution from ebm-papst, you get a complete

mostly from different manufacturers. The user then has to ensure

system, consisting of a motor, impeller and integrated variable speed

that these components fit together. This costs time and money,

drive. All from one source and ready configured. That means no extra

as well as being very stressful.

components and simple commissioning.

3

The system solution for every power range.

The performance measurements for all fans are conducted on

you can count on these values being met. This rules out any nasty­cutting edge chamber test rigs as per ISO 5801. The entire fan unit,

surprises when commissioning the fans. The measurement dataconsisting of the motor, the control electronics, the impeller andform the ­basis for the design program available on request. Use thisthe housing, is measured at different load levels. This provides us

software to calculate expected operating costs or conduct a costwith reliable data, meaning that when you are choosing your fans,analysis for the life cycle.

2,000
Ø 310

Pa

Ø 250

Ø 280
1,000
900
800
700

Ø 355

Ø 400600
500
400
300

200

psf

100500

2,000

1,000

3,000

4,000

5,000

10,000qV

Nominalvoltage range

Frequency

Speed/rpm(1)Max. input
power(1)Max. current
draw (1)Perm. ambient
temperaturem3/hArticle numberMotor

VACHz

min–1

W

A°C

D3G250-GG09-_

M3G084-GF

380–480

50/60

3,850

1,810

2.9–25...+40

D3G280-GG10-_

M3G084-GF

380–480

50/60

2,900

1,320

2.1–25...+40

D3G310-GG05-_

M3G112-IA

380–480

50/60

3,140

3,180

4.9–25...+40

D3G355-GG03-_

M3G112-IA

380–480

50/60

2,600

3,160

4.9–25...+40

M3G112-IA

380–48050/60

1,920

2,380

3.7

–25...+40

Nominal data

D3G400-GG04-_(1) Nominal data in operating point with maximum load and 400 VAC

4

Superior in all areas.

Scroll housing
High static pressure

High static efficiency– High efficiency at high pressures– Aerodynamically optimised blade duct

– Lower pressure loss at full discharge

Lower noise emission

Fewer interferences– Offset arranged blades– Lower sensitivity to installation disturbances

Low vibration– Scroll housing tailored to the impeller–	Dynamic balancing of the impeller motor unit

– Inlet nozzle ideally matched to the impeller
Light and robust–	Impeller, motor, control electronics and housing
in a single compact unit
– Small construction volume at high flow rates– Galvanised sheet steel, corrosion resistant

minimises the creation of structure-borne
noise and reduces the bearing load
– Proven vibration-insulated suspension
Robust design–	Suitable for constantly high circumferentialspeed

Simple installation– Corrosion-resistant aluminium–	Housing with discharge and connection– Robot-welded blades throughout

flange–	Foot variants with easily movable feetor rectangular frame–	Market-standard metric installation
dimensions (simple 1:1 replacement)

5High-performance impeller

GreenTech EC motor

Electronics with connection section

Unrivalled compactness

Versatile– The impeller is mounted directly onto the– Continuously controllable speed­motor rotor
High efficiency– Low copper and iron losses– Control signal 0–10 V DC and MODBUS–	Flexible cable exit /moveable
connection area

– No slip loss due to synchronous running

Universally applicable–	No magnetic hysteresis losses in the rotor– Different voltage variants for global use

due to the use of permanent magnets (ferrite)– Suitable for 50 and 60 Hz networks

Economical operation

Safe operation– Optimised commutation permits–	Integrated blocking and overheating

partial-load operation up to 1:10
while still maintaining high efficiency

protection– Environment-resistant cable glands

Low noise emissions

Simple commissioning–	Commutation and stator design ensure–	Central terminal area for power connection,

low-noise magnetisation of the field system–	High, acoustically imperceptible pulse­frequency

alarm relay and control and communication–	Secure separation between terminal areasand electronics

Long service life

– High-quality connection terminals– Maintenance-free bearings–	No programming required during– Brushless commutation­commissioning

Safe operation– Insulated bearing system to avoid
bearing currents

6RadiFit for retrofit.

Two dimension systems have become established in recent years for housing fans. Imperial measurements in inches and metric measurements
in line with DIN 323, norm series R20. The RadiFit fan housing sizes use metric dimensions and are therefore also suitable for 1:1 replacement inexisting systems. Simple, fast, efficient.
RadiFit with mounting bracket (90°) and flange
O
G

S1
7.5

B

S
F

D

S1

H

C

E

I

S

K

M

A

N

Dimensions in mm.

Article number

A

B

C

DE

G

H

I

K

M

NO

S

S1

D3G250-GG09-01

432

205

269

455

322

258

306

220

224

348

377

379

3 x 90352

D3G280-GG10-01

474

225

302

512

361

270

331

243

280

392

416

418

3 x 90391

D3G310-GG05-01

529

246

341

573

404

305

370

258

280

436

466

462

4 x 90434

D3G355-GG03-01

592

271

383

648

453

340

409

287

355

494

515

5114 x 90483

D3G400-GG04-01

649

300

432

727

507

380

458

318

355

549

569

565

5 x 90537

The RadiFit with mounting bracket is supplied with a connection flange on the outlet side and fastening feet mounted in the 90° housing position.
The feet can be easily moved according to the housing positions at 0° and 270°. At 180°, the flange is preferred for mounting.
RadiFit with frame and flange
O
P

S1
7.5

B

S1

R

S

U

E

T

S

K

K1

M
N

Q

Dimensions in mm.

Article numberA

B

CDE

GH

IK

K1

M

NO

PQ

RT

U

D3G310-GG05-04

529

246

341

573

404

305

370

258

280

105

436

466

462

283

490

578 4 x 90 235

203

D3G355-GG03-04

592

271

383

648

453

340

400

287

355

95

494

515

511

319

544

656 4 x 90 267

227

D3G400-GG04-04

649

300

432

727

507

380

458

318

355

129

549

570

565

361

612

736 5 x 90 300

254

S

The RadiFit is also delivered with mounting frame and discharge side connection flange for sizes 310 and above.
7

www.ebmpapst.com

ebm-papst
Mulfingen GmbH & Co. KG
Bachmühle 274673 Mulfingen
Germany
Phone +49 7938 81-0
Fax +49 7938 81-110
info1@de.ebmpapst.com

37914-7-8811 · 2015-01 · WO-3’